Flight number record
DL 404
Delta Air Lines · Atlanta to New York
- Route
- ATL → LGA
- Departs
- 06:00
- Flights
- 250
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 404, check with Delta Air Lines.
DL 404 earns an A−. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 250 flights, with a median arrival 9 minutes early.
Set against the rest of the country, DL 404's record is 14 points better than the US average of 77.3%. That gap is worth roughly 144 fewer late arrivals for every thousand flights.
Key figures
On time
91.7%
Arrivals under 15 minutes late, of 241 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
3.60%
National rate is 1.89%
1 hour+ late
2.5%
National rate is 8.3%
These figures cover 250 flights between September 2025 and August 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When DL 404 flies
DL 404 flies ATL to LGA without a single fixed slot. Its most common scheduled departure was 06:00, used on 133 of 250 flights, with 06:30 (117 flights) next.
- Departs 06:00133 flights53.2%
- Departs 06:30117 flights46.8%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 404 runs 2 points better at 91.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 404 next to ATL to LGA
Every carrier on ATL to LGA combined arrived on time 72.3% of the time across 8,502 flights, so DL 404 is 19 points ahead of it. Delta flew 4,937 flights on the same city pair under all its flight numbers, including this one, and those ran 75.9% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 404thin sample | 250 | 91.7% | 47 min | 3.60% | A− |
| All Delta Air Lines on ATL–LGA | 4,937 | 75.9% | 66 min | 3.48% | B− |
| All carriers on ATL–LGA | 8,502 | 72.3% | 79 min | 4.34% | C− |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 404 quarter by quarter
DL 404 did not run the same all year. Its best quarter was Jan–Mar 2026 at 96.5% on time and its weakest Oct–Dec 2025 at 86.0%, a swing of 11 points on roughly 63 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202522 flights—
- Oct–Dec 202557 flights86.0%
- Jan–Mar 202662 flights96.5%
- Apr–Jun 202665 flights92.1%
- Jul–Sep 202644 flights90.5%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 404 ranged from 85.7% on Tuesday to 95.9% on Thursday. With about 36 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 404 runs when it is late
DL 404 often beats the schedule: 77 of 241 completed flights, 32%, arrived 15 minutes or more early. Most of the lateness is short. 10 of the 20 late arrivals were under half an hour behind, and 6 reached an hour or more.
- 15+ min early77 flights32.0%
- Within 15 min144 flights59.8%
- 15–29 min late10 flights4.1%
- 30–59 min late4 flights1.7%
- 1–2 hours late5 flights2.1%
- 2+ hours late1 flights0.4%
Scale runs 0% to 100%.
Share of 241 completed flights by arrival against schedule.
6 of 23 late departures made up the time and arrived on time, 26% of them. Only 3 left on time and still arrived late.
The worst days
Worst days for DL 404
The latest arrival of the period was on 21 July 2026, 2 hours 25 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 July 2026 | 2 hours 25 minutes | Carrier |
| 5 May 2026 | 1 hour 46 minutes | Carrier |
| 9 September 2025 | 1 hour 30 minutes | Carrier |
| 17 March 2026 | 1 hour 14 minutes | Carrier |
| 23 April 2026 | 1 hour 11 minutes | Carrier |
Delay causes
Why DL 404 runs late
Carrier accounts for 88% of the 943 delay minutes carriers reported here, and the remaining four split what is left.
- 88%Carrier
- 9%National Airspace System
- 3%Late-arriving aircraft
The largest share of delay minutes, 88%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 827 of the 943 delay minutes reported here. The split is drawn from 943 delay minutes reported on DL 404.
Cancellations run at 3.60%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.5% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 762 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on four other city pairs in the data, including RDU to BOS (4), LAS to MSP (2) and MYR to DTW (1), but none flew often enough under DL 404 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to LGA only.
One caution: this is a thin sample. 250 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking DL 404
For a booking, the cancellation rate is the figure to plan around on DL 404: 3.60% of its 250 scheduled flights did not operate. A late arrival costs roughly 45 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- ATL to LGA, every carrier and departure
- LGA to ATL, the return direction
- Delta Air Lines 520 on the same route69.5%
- Frontier Airlines 3288 on the same route36.9%
- Delta Air Lines 513 on the same route87.7%
- Delta Air Lines 997 on the same route67.1%
- Delta Air Lines 371 on the same route84.7%
- Delta Air Lines 434 on the same route62.1%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- LaGuardia (LGA) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- What a cancellation rate actually tells you (and what it hides)
A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.